What many dont realize is that the 6.5x300 Wby came about as a result of a bullet being introduced to this country by Norma in about 1950. It was a 139 gr match bullet, and the first reamer was created by a man by name of Wright, who was a long range target shooter from NM. He made a deal with a Pa gunsmith by name of Alex Hoyer who used it to build long range hunting guns. It was for quite awhile the most popular LR hunting gun on the planet untill the early 70s. There would still be some reamers gathering dust in Pa, and id probably know where a few might be.
For sure there are some of those old Norma bullets gathering dust also.